feat(backend): set sponsorship cost

refs #10
elimu-ai · Jun 27, 2024 · 56d98fc · 56d98fc
1 parent f0ba348
commit 56d98fc
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Showing 2 changed files with 24 additions and 12 deletions.
diff --git a/backend/contracts/SponsorshipProgram.sol b/backend/contracts/SponsorshipProgram.sol
@@ -2,13 +2,13 @@
 pragma solidity ^0.8.24;
 
 /**
- * A system for sponsoring the education of one individual child.
+ * Education sponsorship program, for delivering education to out-of-school children.
  */
 contract SponsorshipProgram {
     address public owner;
-    uint256 public sponsorshipCost;
+    uint256 public estimatedCost;
 
-    event SponsorshipCostUpdated(uint256 amount);
+    event EstimatedCostUpdated(uint256 amount);
 
     error OnlyOwner();
 
@@ -19,13 +19,13 @@ contract SponsorshipProgram {
         _;
     }
 
-    constructor(uint256 _sponsorshipCost) {
+    constructor(uint256 _estimatedCost) {
         owner = msg.sender;
-        sponsorshipCost = _sponsorshipCost;
+        estimatedCost = _estimatedCost;
     }
 
-    function updateSponsorshipCost(uint256 amount) public onlyOwner {
-        sponsorshipCost = amount;
-        emit SponsorshipCostUpdated(amount);
+    function updateEstimatedCost(uint256 amount) public onlyOwner {
+        estimatedCost = amount;
+        emit EstimatedCostUpdated(amount);
     }
 }
diff --git a/backend/test/SponsorshipProgram.ts b/backend/test/SponsorshipProgram.ts
@@ -12,21 +12,21 @@ describe("SponsorshipProgram", function () {
     // Contracts are deployed using the first signer/account by default
     const [owner, otherAccount] = await hre.ethers.getSigners();
 
-    const sponsorshipCost = hre.ethers.parseUnits("0.02");
+    const estimatedCost = hre.ethers.parseUnits("0.02");
 
     const SponsorshipProgram = await hre.ethers.getContractFactory("SponsorshipProgram");
-    const sponsorshipProgram = await SponsorshipProgram.deploy(sponsorshipCost);
+    const sponsorshipProgram = await SponsorshipProgram.deploy(estimatedCost);
 
     return { sponsorshipProgram, owner, otherAccount };
   }
 
   describe("Deployment", function () {
-    it("Should set the right sponshorship cost", async function () {
+    it("Should set the right estimated cost", async function () {
       const { sponsorshipProgram } = await loadFixture(deployFixture);
 
       const expectedValue = hre.ethers.parseUnits("0.02");
       console.log("expectedValue:", expectedValue);
-      expect(await sponsorshipProgram.sponsorshipCost()).to.equal(expectedValue);
+      expect(await sponsorshipProgram.estimatedCost()).to.equal(expectedValue);
     });
 
     it("Should set the right owner", async function () {
@@ -35,4 +35,16 @@ describe("SponsorshipProgram", function () {
       expect(await sponsorshipProgram.owner()).to.equal(owner.address);
     });
   });
+
+  describe("EstimatedCost", function () {
+    it("Should emit an event on update", async function () {
+      const { sponsorshipProgram } = await loadFixture(deployFixture);
+
+      const newEstimatedCost = hre.ethers.parseUnits("0.03");
+      console.log("newEstimatedCost:", newEstimatedCost);
+      await expect(sponsorshipProgram.updateEstimatedCost(newEstimatedCost))
+        .to.emit(sponsorshipProgram, "EstimatedCostUpdated")
+        .withArgs(newEstimatedCost);
+    });
+  });
 });